JPH0338634Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a grain dryer that distributes an appropriate amount of drying hot air evenly through the grains flowing down the drying passage provided in the dryer main body, so that the grains can be dried uniformly. It is related to the device.

Conventionally, grain dryers have a structure in which hot air chambers and exhaust chambers are provided facing each other on both sides of a drying passage provided in the dryer main body, and dry hot air is distributed from the hot air chamber to the exhaust chamber through the drying passage. , is described in Japanese Utility Model Application Publication No. 49-78462, and a grain dryer that attempts to improve drying efficiency by increasing the suction amount of drying air is described in Japanese Utility Model Application Publication No. 58-64999. As is already known.

By the way, in the above conventional grain dryer,
In addition to the first suction port of the burner provided at one end of the hot air chamber, a second suction port is simply provided near the burner, so it is possible to increase the amount of dry air sucked. The problem was that the increased suction of drying air was concentrated in the part of the drying passage near the burner, and was not distributed evenly throughout the drying passage, resulting in greater uneven drying of the grain.

Therefore, in view of the problems of the conventional method, the present invention provides a hot air chamber and a ventilation chamber on both the left and right sides of the drying passage. By installing a dry air intake window, the air that is sucked from the exhaust room through the drying passage, the burner duct of the hot air room, and the dry air intake window is dispersed, and the air is also A grain drying device that provides an appropriate flow resistance to the sucked air and a diffusion effect to distribute hot drying air evenly throughout the drying passage, thereby drying the grains evenly and uniformly. The purpose is to provide the following.

An embodiment of the present invention will be described below with reference to the drawings.

In the drawing, 1 is the main body of the dryer, inside which left and right grain plates 3, 3 are arranged in a funnel shape, and a grain storage chamber 2 is formed in the upper part. In the lower part, a drying passage 4 is formed in the front-rear direction, the upper end of which is connected to the grain storage chamber 2, and the lower end of which is connected to a discharge gutter 5 provided in the front-rear direction at the bottom of the dryer main body 1. The left and right side walls of the drying passage 4 are formed by ventilated side plates 4a and 4b, and the lower part of the drying passage 4 is provided with a feeding roll 6 which is rotated intermittently. , the grains are allowed to flow down from the grain storage chamber 2 to the drying passage 4.

On the other hand, below the grain storage chamber 2, there is a hot air chamber 7 and an exhaust chamber 8 on both sides of the drying passage 4.
are respectively formed, and a burner duct 9 is attached to the front and rear end walls 7a of the hot air chamber 7 with the intake side opening to the outside and the discharge side opening to the inside.
The burner duct 9 houses a burner 10 for generating dry hot air. Further, on the front and other end walls of the ventilation chamber 8, there are ventilation ducts 11 with both ends open.
is attached, and a suction exhaust fan 12 is housed in the exhaust duct 11. On the outer wall 7b of the hot air chamber 7, in a part away from the burner duct 9,
A dry air intake window 13 is provided which is formed by drilling a large number of small suction holes 14 in a mesh pattern. The dry air intake window 13 may also be provided on the end wall 7c of the hot air chamber 7 on the opposite side from the burner duct 9, as shown in FIG.

In addition, 15 is a carry-out screw in the carry-out gutter 5;
Reference numeral 6 denotes an elevator, and the upper part of this elevator 16 is connected to a carry-in device 17 installed on the top of the dryer main body 1, and the lower part thereof is connected to the carry-out gutter 5.

In the grain drying apparatus configured as described above, dry hot air is sucked and distributed from the burner duct 9 of the hot air chamber 7 through the drying passage 4 by the suction action of the suction fan 12 attached to the exhaust chamber 8. At the same time, dry air is sucked through the dry air intake window 13. And this dry air intake window 1
The dry air sucked in from the burner duct 9 is mixed with dry hot air and flows through the drying passage 4, but the dry air intake window 13 is separated from the burner duct 9 and is composed of a large number of small suction holes 14. As a result, the dry hot air flowing from the hot air chamber 7 through the drying chamber 4 to the exhaust chamber 8 is dispersed, and the air flow passing through the dry air intake window 13 is subjected to flow resistance.
Moreover, since it is subjected to a diffusion effect, the drying hot air passing through the drying passage 4 becomes uniform over the entire area. Therefore, the grains are evenly and uniformly dried during the process of flowing down the drying passage 4.

As described above, according to the present invention, a hot air chamber and an exhaust chamber are provided facing each other on both the left and right sides of a drying passage provided in the dryer main body, and a burner duct storing a burner is installed on one front and rear end wall of the hot air chamber. In this case, a ventilation chamber duct containing a suction and ventilation chamber is provided on the front and other end walls of the ventilation chamber, and a large number of small suction holes are installed on the outside wall of the hot air chamber at a portion away from the burner duct. Since the dry air intake window consisting of a large number of small suction holes is installed, the air sucked from the exhaust chamber through the drying passage through the burner duct of the hot air room and the dry air intake window is dispersed. The drying hot air is distributed evenly throughout the drying passage by providing an appropriate flow resistance to the air and exerting a diffusion effect.
This has the effect of drying grains evenly and uniformly.

[Brief explanation of drawings]

The drawings show an embodiment of the grain drying apparatus according to the present invention, in which Fig. 1 is an overall perspective view, Fig. 2 is a longitudinal front view, and Fig. 3 is a partial cross-sectional view showing another embodiment. FIG. DESCRIPTION OF SYMBOLS 1...Dryer body, 4...Drying passage, 7...Hot air chamber, 7a...Outside wall thereof, 8...Exhaust air chamber, 9...
... Burner duct, 10 ... Burner, 11 ... Exhaust duct, 12 ... Suction exhaust fan, 13 ... Dry air intake window, 14 ... Small suction hole.

Claims (1)

[Scope of utility model registration request] On both the left and right sides of the drying passage provided inside the dryer body,
A hot air chamber and a ventilation chamber are installed facing each other, and a burner duct containing a burner is installed on one front and rear end wall of the hot air chamber, and an exhaust duct housing a suction exhaust fan is installed on the front and other end walls of the ventilation chamber. In the above-mentioned hot air chamber, the outside wall of the hot air chamber is located away from the burner duct.
A grain drying device characterized by having a dry air intake window consisting of a large number of small suction holes.